Field              Field  Off Leng           Description
    Name               Type   set

   IEWBPMR                              Binder PMAR buffer, Version 5
   PMRH_BUFFER_ID      Char     0   8   Buffer identifier "IEWBPMR"
   PMRH_BUFFER_LENG    Binary   8   4   Length of the buffer,
                                           including the header
   PMRH_VERSION        Binary  12   1   Version identifier
   *** RESERVED ***    Binary  13   3   Reserved, must be zeros
   PMRH_ENTRY_LENG     Binary  16   4   Length of entries (always 1)
   PMRH_ENTRY_COUNT    Binary  20   4   Number of entries (bytes) in the buffer
   *** RESERVED ***    Binary  24   8   Reserved, initialize to zeros
   PMRH_ARRAY          Undef.  32  var  PMAR data (length varies from 1 to 1024 bytes
                                           depending on value in PMRH_ENTRY_COUNT;
                                           typically, PM4 has 136 bytes, PM3 has 128 bytes,
                                           PM2 has 112 bytes, and PM1 has 88 bytes of PMAR